Chinese engineers have unveiled a series of robots these days — without releasing lots of technical details about them. In the past two months, I’ve gathered pictures of robots which can act as waiters in restaurants in Hong Kong or pull rickshaws near Beijing. I’ve also found a four-finger robotic hand able to play organ, a female robot greeting tourists visiting the Sichuan Science Museum with ‘ni hao’ (‘How are you?’ in Mandarin — if my sources are correct), and even a robotic chimpanzee.